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Re: [TenTec] Omni VI Meter Lamp dimming

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni VI Meter Lamp dimming
From: Jim <jlboockh@earthlink.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 11 Feb 2006 19:20:00 -0600
List-post: <mailto:tentec@contesting.com>
No, and I have two.

                Jim  N4AL

Ken Brown wrote:
> The meter lamps on my Omni VI dim noticeably when either the VOX or 
> SPLIT LEDS are lighted. It is doubtful that this is due to a power 
> supply lead voltage dropping from the increased load of the LEDs, for 
> two reasons. The amount of current the LEDs use is probabaly less than 
> 20 mA each, and the controlled voltage source for the meter lamps is on 
> a completely different board, the Low Level Driver Board. So the 
> amplitude or duty cycle of the "digit driving pulses" coming from the 
> LED Display Drive Board must be changing when the SPLIT or VOX LEDs are 
> turned on. This doesn't seem right.
> Anyone else with an Omni VI notice this, or know what the cause is?
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